not sure what you describe but that doesn't seem a problem in the evince
pdf viewer
** Changed in: evince (Ubuntu)
Importance: Undecided => Low
** Changed in: evince (Ubuntu)
Status: New => Invalid
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Desktop Bugs,
The problem was that the interface Yandex browser misled. Unfolded and
folded versions of the same displays the window controls (minimize,
maximize, close)
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